LOS ANGELES — After a full day of games on the fields of the MLB Youth Academy in Compton on Saturday, the Trailblazer Series moved to a fitting venue — Dodger Stadium, home of the team that produced baseball’s original and most revered trailblazer — Jackie Robinson. It’s no coincidence that the Trailblazer Series is being held in Los Angeles, or that it falls on the same weekend that Major League Baseball will be celebrating the anniversary of Robinson’s first game with the Dodgers.